# Daily Archives: September 14, 2012

## BB #12: Bring the Bubbly

It’s party time! Friday night, and everything’s right.

For your consideration, there’s celebration in the air (that’s no exaggeration). We’re talking ’bout elation; lookin’ for participation. Ya gotta feel the situation. Join with the recreation; enjoy the circulation (and the conversation).

Listen to that good vibration, trackin’  jubilation destination. Forget your reputation; forget your moderation; ain’t no humiliation (that’s a stipulation). There’s no registration, no identification authentication.

I’m sure it’s no revelation; fermentation fascination will bring inebriation (and hallucination). Hesitation just won’t do; you have an invitation! There is no limitation at this here presentation.

That was my narration; how ’bout a small ovation?

## Fifty-Seven

“Pick a number from 1 to 100.”

Today I’m thinking about the number: 57.

What can be said about the number fifty-seven?

It almost looks like it might be a prime number (due, I expect, to the five and the seven, both of which are prime). But it’s not prime (or in its prime). It’s divisible by 3, and that’s easy to see, because:

5 + 7 = 12;  1 + 2 = 3

That trick works for any number divisible by three. Just keep reducing the digits by adding them until you get a single digit. If that digit is divisible by 3 (3, 6 or 9), then the number can be divided by three. We could even have stopped at the 12, since that is also divisible by 3.

A similar trick works for numbers you can divide by 9 (which, of course, is 3 to the power of 3).  Consider 101,745. Is it divisible by 9?

1 + 1 + 7 + 4 + 5 = 18;  1 + 8 = 9

Yes it is! (And any number divisible by 9 is also divisible by 3.)